<http://schema.org/description>
"Get a 6-ounce sample of free dog or cat food from Purina through PetSmart when you make an in-store purchase. Or, you can choose to get $3 off any bag of Purina Pro Plan cat or dog food, any size."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2010/11/16/free-purina-dog-food-or-cat-food-with-purchase/19720262/?gen=1>